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Effect of wastewater disposal and extent of industrial pollution in and around Kanpur, Uttar Pradesh, India

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Abstract

 Kanpur City has become a large industrial complex with nearly 800 industries. This has increased the social and economic status of the city, but these industries are also causing severe environmental pollution. In addition to smoke, dust and pollutant gases, water pollution through the discharge of industrial effluents is causing severe problems. The pollutants include As, Cr, Cd, Cu, Fe, Hg, Pb and Zn, which are considered as toxicants. The presence of various ions, such as Fe2+, Ca2+, Mg2+, Cl and SO4 , significantly changes the water characteristics, including its ability to stain, its hardness and salinity. The presence of some other oxidizing and reducing agents, such as ammonia, nitrite, nitrate and sulphate, causes problems such as depletion of oxygen, foul odour and microbial growth. The extent of pollutants in the wastewater discharge from different types of industries and the hazards of these pollutants in wastewater are discussed.

Résumé

La ville de Kanpur est devenue un grand complexe industriel avec près de 800 industries. Son statut social et industriel s'est trouvé relevé. Cependant ces industries génèrent une importante pollution. En plus de la pollution de l'air par les poussières des fumées et les gaz nocifs, la pollution de l'eau résultant de divers effluents industriels cause de sérieux problèmes. Les polluants comprennent As, Cr, Cd, Fe, Hg, Pb et Zn, qui sont considérés comme toxiques. La présence de divers ions, tels que Fe2+, Ca2+, Mg2+, Cl et SO4 , modifie les caractéristiques de l'eau de façon significative, sa dureté et sa salinité. La présence d'autres agents oxydants ou réducteurs, tels que ammoniac, nitrites, nitrates et sulfates, cause des problèmes liés à la réduction de l'oxygène dissout, à des odeurs nauséabondes et des développements microbiens. L'importance de ces polluants dans les eaux rejetées par différentes industries et les risques correspondants sont discutés dans cet article.

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Received: 24 June 2000 · Accepted: 29 August 2000

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Singh, R. Effect of wastewater disposal and extent of industrial pollution in and around Kanpur, Uttar Pradesh, India. Bull Eng Geol Env 60, 31–35 (2001). https://doi.org/10.1007/s100640000079

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  • DOI: https://doi.org/10.1007/s100640000079

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